Analysis
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max time kernel
124s -
max time network
36s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
21-05-2023 06:43
Behavioral task
behavioral1
Sample
ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe
Resource
win10v2004-20230220-en
General
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Target
ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe
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Size
543KB
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MD5
53fdeb923b1890d29b8f29da77995938
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SHA1
a996ccd0d58125bf299e89f4c03ff37afdab33fc
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SHA256
ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e
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SHA512
7c78e880f3d2dfc163625ff3d0b4676aa6a083dbbeac270520679f6b21d1c449c5af720ca7b9a68b5b3309e2de8d586cfed5d9b3a78d006e6d981a1aaf88c535
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SSDEEP
12288:M1DTMHixr1moQqUiXINDl/m1s6BQio67VlAU:AzmoQqUiXw2s6yiVxR
Malware Config
Extracted
C:\Program Files\readme.txt
https://aazsbsgya565vlu2c6bzy6yfiebkcbtvvcytvolt33s77xypi7nypxyd.onion:80/
Signatures
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Black Basta
A ransomware family targeting Windows and Linux ESXi first seen in February 2022.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (1151) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Modifies extensions of user files 8 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exedescription ioc process File renamed C:\Users\Admin\Pictures\SetMove.png => C:\Users\Admin\Pictures\SetMove.png.basta ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File renamed C:\Users\Admin\Pictures\MergeReset.crw => C:\Users\Admin\Pictures\MergeReset.crw.basta ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File renamed C:\Users\Admin\Pictures\CopyCheckpoint.raw => C:\Users\Admin\Pictures\CopyCheckpoint.raw.basta ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File renamed C:\Users\Admin\Pictures\DenyAssert.crw => C:\Users\Admin\Pictures\DenyAssert.crw.basta ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File renamed C:\Users\Admin\Pictures\ExpandImport.crw => C:\Users\Admin\Pictures\ExpandImport.crw.basta ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File renamed C:\Users\Admin\Pictures\ExportUnblock.png => C:\Users\Admin\Pictures\ExportUnblock.png.basta ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File renamed C:\Users\Admin\Pictures\ProtectEnable.png => C:\Users\Admin\Pictures\ProtectEnable.png.basta ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File renamed C:\Users\Admin\Pictures\SkipBackup.tif => C:\Users\Admin\Pictures\SkipBackup.tif.basta ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dlaksjdoiwq.jpg" ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe -
Drops file in Program Files directory 64 IoCs
Processes:
ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exedescription ioc process File opened for modification C:\Program Files\Mozilla Firefox\pingsender.exe ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\7-Zip\Lang\et.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\VideoLAN\VLC\Documentation.url ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files\Common Files\Microsoft Shared\ink\HWRCustomization\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsrom.xml ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Google\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\DVD Maker\OmdProject.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\MSAEXP30.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\16to9Squareframe_Buttongraphic.png ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\circleround_selectionsubpicture.png ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Heart_ButtonGraphic.png ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Internet Explorer\DiagnosticsHub.DataWarehouse.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Common Files\System\de-DE\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\STSUPLD.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\MSBuild\Microsoft\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files\Java\jre7\lib\deploy\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Microsoft Games\Solitaire\SolitaireMCE.lnk ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\OUTLMIME.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\OUTLCTL.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Java\jre7\bin\orbd.exe ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Java\jre7\lib\fontconfig.properties.src ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Internet Explorer\en-US\jsprofilerui.dll.mui ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\mscss7wre_en.dub ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\NL7Data0011.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\OFFRHD.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsjpn.xml ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Microsoft Sync Framework\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\DVD Maker\fr-FR\DVDMaker.exe.mui ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Monet.jpg ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\System\Ole DB\sqloledb.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\include\jvmti.h ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Java\jre7\bin\java.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Adobe\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Mozilla Firefox\api-ms-win-crt-math-l1-1-0.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\WORDIRM.XML ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipshrv.xml ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Microsoft Sync Framework\v1.0\Documentation\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\jvm.lib ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\BCSClientManifest.man ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\OMSXP32.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\ContactPicker.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\DVD Maker\Pipeline.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Internet Explorer\iediagcmd.exe ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Microsoft Office\Office14\BCSLaunch.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\InkObj.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\System\msadc\msdaremr.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Internet Explorer\DiagnosticsTap.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files\Java\jre7\bin\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Mozilla Firefox\api-ms-win-core-file-l2-1-0.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Mozilla Firefox\firefox.exe ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Microsoft Office\Office14\QUERIES\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Newsprint.thmx ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\TWORIENT.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\InkDiv.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\DVD Maker\Eurosti.TTF ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files\Mozilla Firefox\gmp-clearkey\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Java\jre7\bin\tnameserv.exe ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files\Mozilla Firefox\browser\features\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Executive.thmx ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\TabIpsps.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files\Common Files\Microsoft Shared\MSInfo\it-IT\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\VC\msdia90.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe -
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exevssadmin.exepid process 324 vssadmin.exe 1048 vssadmin.exe -
Modifies registry class 3 IoCs
Processes:
ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.basta\DefaultIcon ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.basta ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.basta\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico" ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 1684 vssvc.exe Token: SeRestorePrivilege 1684 vssvc.exe Token: SeAuditPrivilege 1684 vssvc.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.execmd.execmd.exedescription pid process target process PID 788 wrote to memory of 300 788 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe cmd.exe PID 788 wrote to memory of 300 788 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe cmd.exe PID 788 wrote to memory of 300 788 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe cmd.exe PID 788 wrote to memory of 300 788 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe cmd.exe PID 300 wrote to memory of 324 300 cmd.exe vssadmin.exe PID 300 wrote to memory of 324 300 cmd.exe vssadmin.exe PID 300 wrote to memory of 324 300 cmd.exe vssadmin.exe PID 300 wrote to memory of 324 300 cmd.exe vssadmin.exe PID 788 wrote to memory of 560 788 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe cmd.exe PID 788 wrote to memory of 560 788 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe cmd.exe PID 788 wrote to memory of 560 788 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe cmd.exe PID 788 wrote to memory of 560 788 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe cmd.exe PID 560 wrote to memory of 1048 560 cmd.exe vssadmin.exe PID 560 wrote to memory of 1048 560 cmd.exe vssadmin.exe PID 560 wrote to memory of 1048 560 cmd.exe vssadmin.exe PID 560 wrote to memory of 1048 560 cmd.exe vssadmin.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe"C:\Users\Admin\AppData\Local\Temp\ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe"1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:788 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:300 -
C:\Windows\system32\vssadmin.exeC:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:324
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c C:\Windows\System32\vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:560 -
C:\Windows\SysWOW64\vssadmin.exeC:\Windows\System32\vssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1048
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1684
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
401B
MD5ab8018847c007394feabfa8f14626ebc
SHA1d4669c9e29be5e1f32d7c30bf65ec8bd72566b2f
SHA2562967e1d97d32605fc5ace49a10828800fbbefcc1e010f6004a9c88ef3ecdad88
SHA5120f893ccd2add411ed93cade6519f9d2faf22831c60c279f355355406b72d92670a33b6b04362becb2344f3ff0b6ff979d9c078b24628c9de65cd421cf43402b9